WO2009063861A1 - Filter filtration material, method for producing the same and filter unit - Google Patents

Filter filtration material, method for producing the same and filter unit Download PDF

Info

Publication number
WO2009063861A1
WO2009063861A1 PCT/JP2008/070499 JP2008070499W WO2009063861A1 WO 2009063861 A1 WO2009063861 A1 WO 2009063861A1 JP 2008070499 W JP2008070499 W JP 2008070499W WO 2009063861 A1 WO2009063861 A1 WO 2009063861A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
filter
filtration
porous membrane
fiber layer
Prior art date
Application number
PCT/JP2008/070499
Other languages
French (fr)
Japanese (ja)
Inventor
Masaaki Mori
Masatoshi Suzuki
Original Assignee
Nitto Denko Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2007295815 priority Critical
Priority to JP2007-295815 priority
Application filed by Nitto Denko Corporation filed Critical Nitto Denko Corporation
Publication of WO2009063861A1 publication Critical patent/WO2009063861A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1692Other shaped material, e.g. perforated or porous sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12Composite membranes; Ultra-thin membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/30Polyalkenyl halides
    • B01D71/32Polyalkenyl halides containing fluorine atoms
    • B01D71/36Polytetrafluoroethene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • B01D2239/0654Support layers

Abstract

It is intended to provide a filter filtration material which comprises a polytetrafluoroethylene (PTFE) porous membrane and has secured rigidity by integration of the porous membrane and a breathable support material. The filter filtration material is excellent in breathability and joinability of respective layers constituting the filtration material. In the filter filtration material, the breathable support material comprises a breathable substrate and a fiber layer located on the substrate such that it comes into contact with the PTFE porous membrane, and has a structure in which the substrate and the fiber layer are joined to each other by allowing fiber of the fiber layer to penetrate inside the substrate and entangling it with the substrate, and the fiber layer contains polyolefin-containing fiber joined to the PTFE porous membrane.
PCT/JP2008/070499 2007-11-14 2008-11-11 Filter filtration material, method for producing the same and filter unit WO2009063861A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007295815 2007-11-14
JP2007-295815 2007-11-14

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/742,625 US8900351B2 (en) 2007-11-14 2008-11-11 Filter medium and method of manufacturing the same and filter unit
CN200880116261A CN101861195A (en) 2007-11-14 2008-11-11 Filter filtration material, method for producing the same and filter unit
EP08848805.1A EP2221096B1 (en) 2007-11-14 2008-11-11 Filter filtration material, method for producing the same and filter unit

Publications (1)

Publication Number Publication Date
WO2009063861A1 true WO2009063861A1 (en) 2009-05-22

Family

ID=40638710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/070499 WO2009063861A1 (en) 2007-11-14 2008-11-11 Filter filtration material, method for producing the same and filter unit

Country Status (6)

Country Link
US (1) US8900351B2 (en)
EP (1) EP2221096B1 (en)
JP (2) JP5608323B2 (en)
CN (2) CN101861195A (en)
TW (1) TWI444221B (en)
WO (1) WO2009063861A1 (en)

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WO2016104589A1 (en) * 2014-12-26 2016-06-30 ダイキン工業株式会社 Filtering material for air filter, filter pack, air filter unit and method of manufacturing filtering material for air filter
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WO2016178324A1 (en) * 2015-05-07 2016-11-10 日東電工株式会社 Filter material and filter unit
JP6530638B2 (en) * 2015-05-20 2019-06-12 株式会社幹細胞&デバイス研究所 Cell culture carrier and cell sheet provided with the same
CN105169967A (en) * 2015-07-16 2015-12-23 湖州科富拉膜技术有限公司 Fiberglass tubular composite filter material tensioned membrane
JP2017023979A (en) * 2015-07-27 2017-02-02 日東電工株式会社 Ventilation filter having oil repellency
JP2017133120A (en) * 2016-01-27 2017-08-03 パナソニックIpマネジメント株式会社 Nonwoven fabric, and dust-collecting filter, culture medium of microorganism or biological tissue, and cosmetic goods
JP6312283B2 (en) * 2016-02-17 2018-04-18 株式会社ユニックス Ventilation register
JP6673230B2 (en) * 2017-01-12 2020-03-25 ダイキン工業株式会社 Air filter media
WO2018226076A2 (en) * 2017-06-09 2018-12-13 주식회사 아모그린텍 Filter medium, manufacturing method therefor, and filter unit including same
KR101927831B1 (en) * 2017-11-15 2018-12-11 김창용 Bendable flexible membrane module and method of manufacturing the same
WO2019230984A1 (en) 2018-06-01 2019-12-05 日東電工株式会社 Filter medium and filter unit provided with same
WO2019230983A1 (en) 2018-06-01 2019-12-05 日東電工株式会社 Filter medium and filter unit including same

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JP2002370020A (en) * 2001-06-13 2002-12-24 Nitto Denko Corp Suction filter medium for turbine, its using method and manufacturing method therefor
JP2005253711A (en) 2004-03-12 2005-09-22 Nitto Denko Corp Air filter medium for vacuum cleaner and air filter unit for vacuum cleaner using the same
JP2005279555A (en) * 2004-03-30 2005-10-13 Nitto Denko Corp Air filter medium, using method therefor and air filter unit using the medium
JP2006083496A (en) 2004-09-17 2006-03-30 Kinsei Seishi Kk Synthetic fiber airlaid composite sheet for food extraction
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See also references of EP2221096A4 *

Also Published As

Publication number Publication date
EP2221096A1 (en) 2010-08-25
JP2009136863A (en) 2009-06-25
EP2221096A4 (en) 2011-08-31
CN104841204A (en) 2015-08-19
US8900351B2 (en) 2014-12-02
TWI444221B (en) 2014-07-11
JP5608323B2 (en) 2014-10-15
TW200936219A (en) 2009-09-01
CN101861195A (en) 2010-10-13
US20100269464A1 (en) 2010-10-28
JP2014030825A (en) 2014-02-20
EP2221096B1 (en) 2017-03-22
CN104841204B (en) 2017-07-18
JP6017402B2 (en) 2016-11-02

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